PERSPEX FRICTION ROD
- Length =30 cm approximately.
- Diameter =13mm.
- They are useful for physics experiments in electrostatics and for charging electroscopes.
- Students can appreciate how the rod gets positively charged when rubbed against silk.
- Further on placing one charged rod next to another charged rod, one can demonstrate electrostatic repulsion (of similarly charged rods) or electrostatic attraction (in the case of oppositely charged rods).